Answer: correct evaluation and medium of exchange etc.
Explanation: The main problem with the barter system is that it would be hard to value the goods or services that the parties are exchanging. In the given case, it would be hard to value how many car washes would be equal to a paint of house.
Also finding someone who is willing to paint house in exchange of car washes is another difficult task.
Based on the amounts that you are offered and their present values, the offer you should pick is Birr 10,000 in 12 years.
<h3>Which offer should you pick?</h3>
You should pick the offer with the highest present value.
Offer 1 present value:
= Birr 1,000
Offer 2 present value:
= 10,000 / (1 + 11%)²
= Birr 2,858
Offer 3 present value:
= 25,000 / (1 + 11%)³
= Birr 1,840
In conclusion, option 2 has the highest present value and so should be picked.
Find out more on present value calculations at brainly.com/question/27821989.
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Answer:
75%
Explanation:
Since the production center is available for 8 hours per day in a factory, and the worker operating it is required to lubricate these rotary parts once each day.
If it takes 2 hours to remove these parts from the equipment, lubricate them, and re-assemble them and the production center is not available for production during these times;
Then the availability of the production center is 75% which is derived by : [8 hours total - 2 hours downtime / 8 hours total availability] x 100 = 75%
4,000×0.90=3,600
4,000×0.05=200
200÷3,600=0.056*100=5.6%
